Number of n X 3 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
A266096
Number of n X 3 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
Terms
- a(0) =4a(1) =13a(2) =64a(3) =230a(4) =1012a(5) =3928a(6) =16428a(7) =65736a(8) =269908a(9) =1091720a(10) =4454304a(11) =18082796a(12) =73622676a(13) =299247292a(14) =1217498296a(15) =4950677020a(16) =20137255328a(17) =81894658192a(18) =333086633092
External references
- oeis: A266096